The prediction of Marangoni convection in binary liquid-liquid systems with added surfactants

被引：54

作者：

Agble, D ^{[1
]}

Mendes-Tatsis, MA ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn & Chem Technol, London SW7 2BY, England

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2001年 / 44卷 / 07期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/S0017-9310(00)00159-9

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The theoretically predicted stability of various binary liquid-liquid interfaces in the presence of a transferring surfactant is examined and compared against experimental observations. It is found that the accuracy of some of the current stability criteria in predicting interfacial stability under such conditions is poor. To improve this, a Marangoni coefficient is proposed, the magnitude of which predicts well the presence of surfactant induced Marangoni convection in the systems studied. Plots of the variation of the interfacial tension with concentrations of the Various surfactants investigated are presented and changes in its value are related to the surfactant induced Marangoni convection observed. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1439 / 1449

页数：11

共 36 条

[1] The effect of surfactants on interfacial mass transfer in binary liquid-liquid systems [J].